﻿//    Copyright 2014 LuoZhihui
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//      http://www.apache.org/licenses/LICENSE-2.0
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.

#region  导入名称空间

using System;
using System.Linq.Expressions;

#endregion

namespace LotteryEngine.Infrastructure.Querying
{
	public static class PropertyNameHelper
	{
		public static string ResolvePropertyName<T>(
			Expression<Func<T, object>> expression)
		{
			var expr = expression.Body as MemberExpression;
			if (expr == null)
			{
				var u = expression.Body as UnaryExpression;
				expr = u.Operand as MemberExpression;
			}
			return expr.ToString().Substring(expr.ToString().IndexOf(".") + 1);
		}
	}
}